QWS8224Remote Controlled Car

FCC ID : QWS8224 Ophoto1 Ophoto2 FCC ID : QWS8224 Ophoto3 Ophoto4

FCC ID : QWS8224 Iphoto1 Iphoto2 FCC ID : QWS8224 Iphoto3 Iphoto4 FCC ID : QWS8224 Iphoto5 Iphoto6 FCC ID : QWS8224 Iphoto7 Iphoto8

FCC ID: QWS8224 Technical Description : The brief circuit description is listed as follows : - XT1 and associated circuit act as Oscillator. - Q1 and associated circuit act as RF Amplifier. - Q2 and associated circuit act as Modulator. - Q3, Q4 and associated circuit act as Encoder. Antenna Used : A permanent spring antenna has been used.

1234 A B C D 4321 D C B A C1 47pF C9 0.022uF C2 12pF C3 82pF C7 47pF D1 IN4148 R9 47Kohm R7 22Kohm R8 22Kohm R10 1.2Kohm R6 22ohm R11 10Kohm R5 22Kohm R4 4.7KohmR3 1Kohm XT1 27.145MHz L2 16T L4 1uH Q4 9015 Q3 9015 C10 2A473J C11 2A473J Q2 C945GR331 VSS2 VSS1 9V 6F22 ANTENNA C8 0.01uF C6 47pF C5 33pF R2 51Kohm Q1 C945 L3 3.3uH R1 100ohm C4 0.01uF L1 5.6uH DAIFUL INDUSTRIAL LIMITED PROJECTION TITLE: APPROVED: CHECKED: REV: MODEL: SIZE: SHEET OF 1DRAWN: DRAWING NO: DATED:04-07-03 A4 8224TX PARK & DRIVE 0.047uF0.047uF 1.0

• The test results reported in this report shall refer only to the sample actually tested and shall not refer or be deemed to refer to bulk from which such a sample may be said to have been obtained. • This report shall not be reproduced except in full without prior authorization from Intertek Testing Services Hong Kong Limited. • The evaluation data of the report will be kept for 3 years from the date of issuance. FCC ID : QWS8224 Bao Limited Application For Certification (FCC ID: QWS8224) Transmitter Sample Description : Park & Drive, Model : 8224 We hereby certify that the sample of the above item is considered to comply with the requirements of FCC Part 15, Subpart C for Intentional Radiator, mention 47 CFR [24-5-2001] 0311453 WN/at August 8, 2003 INTERTEK TESTING SERVICES FCC ID: QWS8224 i LIST OF EXHIBITS INTRODUCTION EXHIBIT 1: General Description EXHIBIT 2: System Test Configuration EXHIBIT 3: Emission Results EXHIBIT 4: Equipment Photographs EXHIBIT 5: Product Labelling EXHIBIT 6: Technical Specifications EXHIBIT 7: Instruction Manual EXHIBIT 8: Miscellaneous Information INTERTEK TESTING SERVICES FCC ID: QWS8224 ii MEASUREMENT/TECHNICAL REPORT Bao Limited - MODEL: 8224 FCC ID: QWS8224 August 8, 2003 This report concerns (check one:) Original Grant X Class II Change Equipment Type: Low Power Transmitter (example: computer, printer, modem, etc.) Deferred grant requested per 47 CFR 0.457(d)(1)(ii)? Yes No X If yes, defer until: date Company Name agrees to notify the Commission by: date of the intended date of announcement of the product so that the grant can be issued on that date. Transition Rules Request per 15.37? Yes No X If no, assumed Part 15, Subpart C for intentional radiator - the new 47 CFR [24-5-2001 Edition] provision. Report prepared by: Wilbur Ng Intertek Testing Services 2/F., Garment Center, 576, Castle Peak Road, HONG KONG Phone: 852-2173-8502 Fax: 852-2742-9149 INTERTEK TESTING SERVICES FCC ID: QWS8224 iii Table of Contents 1.0 General Description................................................................................................................ 2 1.1 Product Description ............................................................................................................ 2 1.2 Related Submittal(s) Grants ................................................................................................2 1.3 Test Methodology............................................................................................................... 3 1.4 Test Facility ........................................................................................................................ 3 2.0 System Test Configuration..................................................................................................... 5 2.1 Justification......................................................................................................................... 5 2.2 EUT Exercising Software ................................................................................................... 5 2.3 Special Accessories............................................................................................................. 5 2.4 Equipment Modification .....................................................................................................6 2.5 Support Equipment List and Description............................................................................. 6 3.0 Emission Results ..................................................................................................................... 8 3.1 Field Strength Calculation................................................................................................... 9 3.1 Field Strength Calculation (cont’d) ................................................................................... 10 3.2 Radiated Emission Configuration Photograph................................................................... 11 3.3 Radiated Emission Data .................................................................................................... 12 4.0 Equipment Photographs ...................................................................................................... 15 5.0 Product Labelling ................................................................................................................. 17 6.0 Technical Specifications....................................................................................................... 19 7.0 Instruction Manual............................................................................................................... 21 8.0 Miscellaneous Information ................................................................................................... 23 8.1 Measured Bandwidth ........................................................................................................ 24 8.2 Discussion of Pulse Desensitization .................................................................................. 25 8.3 Calculation of Average Factor .......................................................................................... 26 8.4 Emission Test Procedures ................................................................................................ 27 8.4 Emission Test Procedures (Cont’d)................................................................................... 28 INTERTEK TESTING SERVICES FCC ID: QWS8224 iv List of attached file Exhibit type File Description filename Test Report Test Report report.pdf Operation Description Technical Description descri.pdf Test Setup Photo Radiated Emission radiated photos.pdf Test Report Bandwidth Plot bw.pdf External Photo External Photo external photos.pdf Internal Photo Internal Photo internal photos.pdf Block Diagram Block Diagram block.pdf Schematics Circuit Diagram circuit.pdf ID Label/Location Label Artwork and Location label.pdf User Manual User Manual manual.pdf Test Report Average Factor af.pdf I…

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